Separable fastener



Patented Nov.y 29, 1927.

uN-irllD STATES A 1,651,340 .PATENroi-Fica MOSES F. CARR, F LEXINGTON, MASSACHUSETTS, ASSIGNOR TO CARR FASTENER COMPANY, OF CAMBRIDGE, MASSACHUSETTS, YA CORPORATION 0F MAINE.

SEPARABLE FASTENER.

VApplication filed January 22, 1924. Serial No. 687,749.

This invention pertains `to-separable fasteners. It is among the-objects of the inline 3--3 of Fig; 2;'

Fig. 4 is an elevation of the socket as viewed from the attaching side;

Fig. 51s a section similar to Fig. 2, but showing a modified form of my invention;

" Fig. 6 is a detail section of theinodied Vforni shown in Fig. 5, andshows the means f for attaching thesocket to the curtain; and

Fig. 7 is'an elevation of the modified forni of socket shown in Figs. and 6 as viewed from the attaching side.

Referring to the drawings, I 'have shown a stud of usual f0rm,#presentiiig a head 1,

a neck 3 and a base 4, being attached to the fabric-by ahollow rivet 2.

Thesocket- 5 encloses ajspring l6 of the` simple return bendftype, which isi formed from a single piece of wire providing adjacent its endsstud-engagingjaws*4 7. The casing of the socket is stainped'froni a yflat sheet of metal and presents ak front face 8 having an apertureA 9 through which the stud passes to'engage the jaws 7 The aperture 9 is of a diameter only slightly` greater 'than Y the major Vdiameter of the head1 of the studand'th'e inner face of this aperture lies 'so close to the neck .of the stud vas to permit but relatively slight' strain onv thejaws 7 when the stud` and socket are subjected vto vlateral strains in opposite directions.

The outer or encircling portion' of the spring is supported bythe peripheral wall Vof the casing and the jawsy are supported aga-inst transverse "distortion on onev side .by

the frontV face 8- ofthe casing yand at the other side bythe backrface 10 of the casing. The backface 10 at an intermediate stage tapered rprojections 11 which, after the spring has been placed within the casing, f are lfolded inwardly to provide transverse support forthe jaws 7 andk upwardly to proof manufacture is generally perpendicular.. ,to thefront face`8'and presents a series of.

vide attaching means for securing the socket to its carrying fabric. In Figs. 1 through 4, this attaching means constitutes-a dome 12 providing interiorly a recess into which the head 4 Of the stud may enter, as is'best shown in Fig. 2. This dome 12 has a central aperture through which a securing rivet enters, as is more fully hereinafter described.

By making thecasing, as illustrated, with the foliated portion on that/side which lies Y adjacent the fabric, the front face 8of the socket can be made as a continuous sheet of metal, and the aperture 9 may therefore fit thel stud 1 so closely that lateral strainsbe-y tween stud and socket willibe takenlargely by thesocket casing. Thus the jaws 7 of the spring will not be subjected to suchstrains asl 'might give a permanent set to the spring. Y v

The socket shown inY Fig2 is attached to the fabric 13 by a rivet 15, which maybe held in and ,concealed bythe usual convex cap 14. The rivet 15 is of the tubular type, and inay be slit or scored Ato :facilitate upsetting the end. Theupsett-ing toolY issu constructed asto apply very substantial pressure between the socket and.v socket-attaching cap adjacent their peripheral porn tions, during the upsetting of the tubular rivet, thereby to prevent possible spreading of the foliatedl portions of the socket casing 'by i. the rivet-settingpressure. vThe end of i" vthe rivet passes through the fabric and then throughthe aperture in the .dome 12 rand the Vupset VVportions 17 ofthe rivet are clenched against the shoulder 18 vprovided by flattening a portion of thev `donne 12, as Vis'best shown Yin Figs. 2 and 3.

The term fabric as used throughoutfthis Vapplication is Vintended to include any suitable Yflexible carrying medium such, for instance, as cloth whether woven, knit or felt, Y"

and rubber,leather,` paperl and the like. j

Referring nowv to'Figs. 5 to 7., Which illustrate a modifiedV embodiment'of my invention, the socket is substantially the same as thefirst described, eXceptfor lthe back face .Whichprovides spring-holding ears 19, 19

overlying the upper and'lower ends'of the jaws 20. .The spring-holding ear 19 is preferably, as illustrated, slit radially. intothree portions, of lwhich the center portion is bent ,to project between the adj acenti opposed portions of the spring to preventturningof the spring relative tothesocket casing. Be-

llV

said casing for retaining said spring in said `casing and for cooperation with a separate attaching part for securing said socket to flexible carrying medium.

10. A fastener socket including a onepiece casing having av peripheral wall, a front face integral with said wall, a studreceiving aperture vthrough said front face, the periphery of said aperture present-ing .a notch, a back face including ears extending a substantial distance toward the center of Said casing, a spring in said casing, and a spring-locating portion formed from one of said ears for locating said spring relative to said notch. v

11. A fastener attaching element part for application to the opposite side of a fabric from a separablefastener element for securing said second mentioned fastener element in position upon the fabric, said first mentioned element presenting, in combination, a cap, an attaching plate concealed within and `secured tosaidv cap, said plate presenting an attaching rivet forengagement with means presented by said second mentioned fastener element and a plurality Vof spurs for gripping the fabric interposed between ythe said two elements.

12. A fastener lsocket-attaching part for application to the opposite side of a fabric from a socket casing, said attaching party comprising, in combination, a cap, a tubular rivet presenting plate concealed within said cap, the edges of said cap being flanged inwardly to confine and hold the edges of said plate, said plate presenting, adjacent the in-A portions Aof said spring, said prongs located between said ears and spaced apart to minimize weakening of the carrying. medium by passage of said prongs therethrough.

14. A fastener socket including a casing presenting integrally Vtherewith a peripheral wall, a front face, aback face, a plurality of prongs for attaching said casing to ay curtain, said back face including ears extending toward the center of said casing, said prongs ylocated between said ears and spaced apart from each other to minimize weakening of the fabric by passage of said prongs therethrough, and fabric-gripping spurs in spaces between said prongs.

15. A' fastener .socket including a casing having aback face presenting a plurality of spaced apart prongs for socket-securing engagement with a cap located upon the opposite side of a curtain from the socket, and a plurality of fabric-gripping serrations located in one ormore of the spaces between said'prongs.

16. A fastener socket including a casing containing a spring having jaw presenting portions for engagement with a cooperating stud, said casing presenting at the back face thereof a support-engaging face adj acentthe periphery, jaw-supporting means extended a .substantial distance beyond the innerperiphery of the support-.engaging surface to overii-e substantial portions of said jaw presenting portions at the back face-to back-support said jaw presenting portions, and attaching means extended outwardly from said casing at` thei inner periphery of said support engaging face.

17. A fastener socket including a casing` having a peripheral wall, a pair of spaced parallel faces extending inwardly Vfrom said wall to provide the front and back faces of the casing, a plurality of attaching prongs kextended outwardly from the casing at the inner edge of the back or support-engaging face of said casing, and a relatively'wide ear extending inwardly. beyond said attachjing prongs in a plane parallel with said back face.

18. A fastener socket installation including a carrying medium, a casing having a peripheral wall, a pair of spaced parallel faces extending inwardly from' said wall to provide the front and back faces of the casing, a plurality of .attaching prongsextending outwardly from the casing at the inner In testimony whereofI have signed myf name to this specification.

Mosns F. CARR.k

CERTINCATE GF CG? REGMN.

Patent-N0. 1,651,340. @rented November 29, 1927, to

MOSES E. CARR,

It is hereby certified that errer appears in tite printed specification of the above numbered patent requiring eerreetion es teiiews: Page 2, line 37, claim l, strike out the werds "including in its iermetien" and insert instead "formed from", and line 39, strike out tite werds "termed from" and insert instead "inciuding in its ormaien"; seme page, iiee 117, claim 8, for the Werd "anti" read stuti"; ami that the said Letters Patent should be read with these corrections therein that the same may eeiierm te tite record of the case in the Patent Office.

Signed and sealed this 27th day et December, D. 92?.

ivi., J. Moore,

Seal. Aeting Cemmissioner of Patents. 

